Siphon-flushing apparatus.



yJ. J. MEYER. SIPHON PLUSHING APPRATUS.r

APPLICATION FILED JAN. 3, 1911.

@nl if, v J f "l COLUNBIA PLANOGIAPN C6..WASHIN|JTON. D. c.

Patented Nov. 21, A1911.

JOHN J'. MEYER, 0F YONKERS, NEW YORK.

SIPI-ION-FLUSHING APPARATUS.

Specification of Letters Patent.

Patented Nov. 21, 1911.

Application led January 3, 1911. Serial No. 600,372.

To all whom 'if may concern:

Be it known that I, JOHN J. MEYER, a citizen of the United States, and aresident of Yonkers, in the co-unty of Westchester and State of NewYork, have invented a new and Improved Siphon-Flushing Apparatus, ofwhich the following is a full, clear, and exact description.

The invention relates to siphon flushing apparatus, such as shown anddescribed in the application for Lett-ers Patent of the United States,Serial No. 600,371, led under even date herewith.

The object of the invention is to provide a new and improved siphonflushing apparatus for flushing tanks, arranged to insure the emptyingof the water of the tank from above the level of the water in the tank,and dispensing with submerged valves, thus completely avoiding allleakage and waste of water. v

For the purpose mentioned use is made of a siphon arranged in theflushing tank and having its short leg opening into the tank while thelong leg is connected with the flushing pipe, and means for producing adecrease of pressure in the siphon to start its siphoning action with aview to emptying the tank of water by way of the siphon.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a sectional side elevation of the vacuum flushing valve innormal position in the tank. Fig. 2 is a sectional plan view of thesame, on the line 2-2 of Fig. 1, and Fig. 3 is a sectional sideelevation of a modied form of the vacuum flushing valve.

In the flushing tank A shown in Fig. 1 is arranged a siphon having` along leg. A stand pipe B is secured at its lower end to a thimble Cextending through the bottom of the flushing tank A and fastened theretoby a nipple D, screwihg onl the lower end of the thimble C and against awasher D on the 4under side of the bottom of the tank A the long leg ofthe siphon consist-ing of the stand pipe B and a portion of thethimbleC. The short leg of the siphon is in the form of a pipe E,opening at its lower end into the tank A a distance above the botto-mthereof, as plainly lshown in Fig. 1, the upper end of the suction pipeE being `flush with the upper end of the stand pipe B, so that water canflow from the upper end of the suction pipe E into the upper end of thestand pipe B.

The upper ends of the pipes B and E are provided exteriorly with a fixedpiston head F, on which is mounted to slide a bell or a cylinder G,closed at its upper end and opening at its lower end into a tank A. Theupper closed end of the bell G forms the top of the Siphon. On the topof the bell G is arranged a stuffing box H, in which is slidably mounteda rod I, terminating at its upper end in a head I engaged by a clutch,link or like connection J, connecting with the operating lever Kfulcrumed at K on the top of the tank A and connected with the usualoperating mechanism, under the control of the user, for imparting aswinging motion to the lever K, with a view to raising or lowering thebell G. When the clutch connection shown in Fig. 1 is used, the clutchconnection disengages the head I whenever the lever K reaches apredetermined height so that the bell G drops. It will be observed thatthe edges of the clutch J are rounded at their ends, and when the leverK passes above its pivotal point the clutch, which is being moved on thearc of a circle, is pulled far enough out of alinement so as to causeits rounded ends to disengage the head I', thereby permitting the bell Gto drop. A spring I2 presses against the under side of the head I andrests on top of the stuffing box I-I, so as to hold the rod I normallyin an uppermost position.

In the thimble C is arranged a valve seat C, adapted to be engaged by aflap or a wing valve L, fulcrumed in the thimble G and connected by ashort chain with a stem L2, mounted to slide vertically in bearings N, Narranged in the stand pipe B. The upper end of the stem L2 terminates ina head L3, adapted to be engaged by a head I3 on the lower end of therod I previously mentioned. A spring O is coiled on the upper end of thestem L2 and presses against the under side of the head L3, the lower endof the -spring O resting on the bearing N. The spring O serves to holdthe valve L in a closed position when the bell G is raised, it beingunderstood that when the bell is in a lowermost position, as shown inFig. 1, then the rod I holds the stem L2 in a depressed position, sothat the valve L is open. The top of the bell G is provided with anoutwardly opening relief valve or air vent P, to allow the escape of airfrom the inside of the bell Gr when the latter drops or descends.

The operation is as follows: Then the tank A is filled with water to theusual normal level, then the upper ends of the pipes B and E of thesiphon are above the level of the water, and the bell Gr is in alowermost position, so that the valve L is open. Vhen it is desired toiush the bowl or other fixture, then the user on imparting an upwardswinging motion to the lever K lifts the pin I, so that the stem L2 isreleased and the spring O now forces the stem L2 upward, to close thevalve L. Further upward swinging movement of the lever K causes the headI2 to engage the inside of the bell Gr,

. to lift the same, and in doing so a decrease "and to fill the same.

of pressure is produced in the pipes B and E, so that the atmosphericpressure on the water in the tank A forces the water up the pipe E, tooverfiow into the stand pipe B The bell G, when reaching a desiredheight, is released by the clutch J disengaging the head I so that thebell drops, and in doing so the air in the bell escapes by way of thevent P. Vhen the lever K is released the clutch J re-engages t-he headI3 and pushes the rod I downward so that the head I3 of the rod Istrikes the head L3 of the stem L2 and pushes the same downward to allowthe valve L to open,

Hwhereby the water is caused to flow down the pipe B and the siphon isstarted. The siphoning action of the siphon empties the tank A of thewater, the latter being drawn out of the tank by the action of thesiphon and discharged by way of the long leg into the flushing pipe, toflush the bowl, urinal or other fixture. The water is drawn out of thetank A until the level of the water reaches the lower end of the bell G,at which time air can pass into the lower end of the bell to break thesiphon action. The downward movement of the bell Gr is limit-ed by studsQ, held on the upper ends of the pipes B and E and adapted to be engagedby the bell top on the descent of the bell.

It is expressly understood thatwhen the bell G is caused to slide upwardon the fixed ring F, a decrease of air pressure is produced in the upperportion of the bell Gr, and consequently the atmospheric pressure on thesurface of the water in the tank A causes the water to flow up thesuction pipe E and overfiow into the stand pipe B, as previouslyexplained.

In the modified form shown in Fig. 3, the bottom of the tank A isprovided with a thimble C2, to the lower end of which is secured thenipple D connected with the flushing pipe, and the upper end of thethimble C2 carries the standpipe B, alongside of which is arranged thesuction pipe E of the siphon. The upper ends of the pipes B and VE areconnected with each other below an integral top B2, provided with avalve seat B2 controlled by a valve B2, preferably in the form of a ballvalve arranged in a cage B5. The head F surrounds the upper ends of thepipes B and E, and on the said head is mounted to slide the bell G',connected at its top with a raising and lowering' device G2, of anyapproved construction and under the control of the operator, aspreviously explained. The lower end of the suction pipe E is providedwith an inlet E2, adapted to be closed by a check valve or ball E2. Thebottom of the inlet E2 is inclined, for the ball valve E3 to roll downinto an open position and against a stop piece E3 held on the inlet E2.l

The thimble C2 is provided with a valve seat C3, adapted to be closed bya valve L4 connected by a chain L5 with the stem L6 mounted to slide inbearings N2, N3 arranged in the standpipe B. A spring O is coiled aroundthe stem L6 and rests with its lower end on the bearing N2, while theupper end of the spring O presses against the collar L7 attached to thestem L6 within the stand pipe B. The upper portion of the stem L6extends through a stuffing box I-I held on the top B2, and the upperterminal of the stem L6 is provided with a head LS adapted to be engagedby the top of the bell Gr when the latter descends, so as to open thevalve L4 for the discharge of the water contained in the stand pipe B.The top of the bell Gr is provided with a relief valve or vent P.

When the bell G is drawn upward, the valve L4 is released and the springO closes the valve and a decrease of air pressure is produced in theupper portion of the bell,

so that the valve B4 opens and a suction action is produced in the pipesB and E', to cause the water to flow up the pipe E and overflow into thestand pipe B and be temporarily retained therein by the closed valve L2.When the bell G is released and descends the valve B4 closes, the valveP opens, to allow escape of the air from the bell Gr', and the top ofthe bell finally strikes the head LS,'to push the stem L6 downward, toallow the valve L4c to open and discharge the contents of the st-andpipe B and to start the siphoning action, as before explained, to emptythegtank of the water by way of the siphon.

I/Vhen the tank A is emptied of its contents down to the inlet E2, thenfurther siphoning action ceases and the water flows out of the pipe B,to empty the same.

It is understood that during the time the bell Gr is dropping the valvesB2 and E3 simultaneously move into closed positions so that the air canescape by way of the valve P,and the water in the top portion of thesiphon is retained, as the water cannot flow out of the leg E', andhence the valve L4 can be located high up in the long leg of the siphon,the said valve L* being only opened at the time the bell G reaches alowermost position, and when the valve L4 opens the siphoning actionbegins and opens the valve E3, which latter now remains open until thenext following operation.

By having the bell G fitting tightly on the head F', leakage of airbetween the said parts is prevented, to insure a proper siphoningaction.

It is understood that the tank is filled with water in the usual manner.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

l. In a siphon flushing apparatus, a tank, a long siphon leg passingthrough the bottom of the tank, a short siphon leg disposed adjacentsaid long siphon leg and opening into the tank, a stationary pistonhead, the upper ends of both of said siphon legs being open and beingsecured in said piston head, a movable bell disposed over the pistonhead and in sliding engagement therewith, and means Jfor raising andlowering said bell;

2. In a siphon iiushing apparatus, a tank, a long siphon leg passingthrough the bottom of the tank, a short siphon leg disposed adjacentsaid long siphon leg and opening into the tank, a stationary pistonhead, the upper ends of both of said siphon legs being open and beingsecured in said piston head, a movable bell disposed over the pistonhead and in sliding engagement therewith, a valve disposed in the longleg,

a valve stem for operating said valve, and

means forraising and lowering said cylinder, the raising and lowering ofthe cylinder serving to close and open said valve.

3. In a siphon flushing apparatus, a tank, a long siphon leg passingthrough the bottom of the tank, a short siphon leg disposed adjacentsaid long siphon leg and opening into the tank, a stationary pistonhead, the upper ends of both of said siphon legs being open and beingsecured in said piston head, a movable bell disposed over the pistonhead and in sliding engagement therewith, a valve disposed in the longleg, a valve stem for operating said valve, and means for raising andlowering said cylinder, a portion of said means being adapted to engagesaid valve stem for operating said valve.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN J. MEYER.

Witnesses:

THEO. Gr. Hos'rnn, PHILIP D. ROLLHAUS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

